Measurement report: Introduction to the HyICE-2018 campaign for measurements of ice-nucleating particles and instrument inter-comparison in the Hyytiala boreal forest
Measurement report: Introduction to the HyICE-2018 campaign for measurements of ice-nucleating particles and instrument inter-comparison in the Hyytiala boreal forest
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DOI：
10.5194/acp-22-5117-2022
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发表时间：
2022-04-19
影响因子：
6.3
通讯作者：
Duplissy, Jonathan
中科院分区：
文献类型：
--
作者：
Brasseur, Zoe;Castarede, Dimitri;Duplissy, Jonathan
地球大气层中冰粒的形成强烈影响着云的动力学和光学性质，以及它们对气候系统的影响。云中冰的形成通常是由冰核粒子(INP)非均匀地触发的，INP代表大气中非常少的粒子。迄今为止，已在中低纬度地区调查和确定了矿物和土壤粉尘等许多INP的来源。尽管人们对高纬度冰核的来源知之甚少，但已经努力查明北极和北方环境中冰核形成的来源。在这项研究中，我们研究了高纬度北方森林在混合云区的INP排放潜力。我们介绍了2018年2月至6月在芬兰Hyytiala北部针叶林进行的HyICE-2018测量活动。这场运动利用了第二个生态系统-大气关系测量站的基础设施，并配备了更多的国际磷仪器，包括便携式冰核室I和II(PINC和PINCii)、冰核光谱仪(SPIN)、便携式冰核实验(PINE)、卡尔斯鲁厄理工学院的冰核核光谱仪(INSEKT)和浸没粒子成核微升仪器(MU L-NIPI)，这些仪器用于量化北部环境中的INP浓度和来源。在这篇文章中，我们描述了HyICE-2018期间的测量基础设施和操作程序，并报告了INP仪器并行运行以进行相互比较的特定时间段的结果。我们的结果表明，在HyICE-2018期间部署的一套仪器报告了一致的结果，因此为全面考虑即将到来的结果奠定了基础。此外，我们将测量的INP浓度与INP参数进行了比较，我们观察到与Tobo等人很好的一致。(2013)根据在美国科罗拉多州黄松林生态系统中进行的测量开发的参数化。
The formation of ice particles in Earth's atmosphere strongly influences the dynamics and optical properties of clouds and their impacts on the climate system. Ice formation in clouds is often triggered heterogeneously by ice-nucleating particles (INPs) that represent a very low number of particles in the atmosphere. To date, many sources of INPs, such as mineral and soil dust, have been investigated and identified in the low and mid latitudes. Although less is known about the sources of ice nucleation at high latitudes, efforts have been made to identify the sources of INPs in the Arctic and boreal environments. In this study, we investigate the INP emission potential from high-latitude boreal forests in the mixed-phase cloud regime. We introduce the HyICE-2018 measurement campaign conducted in the boreal forest of Hyytiala, Finland, between February and June 2018. The campaign utilized the infrastructure of the Station for Measuring Ecosystem-Atmosphere Relations (SMEAR) II, with additional INP instruments, including the Portable Ice Nucleation Chamber I and II (PINC and PINCii), the SPectrometer for Ice Nuclei (SPIN), the Portable Ice Nucleation Experiment (PINE), the Ice Nucleation SpEctrometer of the Karlsruhe Institute of Technology (INSEKT) and the Microlitre Nucleation by Immersed Particle Instrument (mu L-NIPI), used to quantify the INP concentrations and sources in the boreal environment. In this contribution, we describe the measurement infrastructure and operating procedures during HyICE-2018, and we report results from specific time periods where INP instruments were run in parallel for inter-comparison purposes. Our results show that the suite of instruments deployed during HyICE-2018 reports consistent results and therefore lays the foundation for forthcoming results to be considered holistically. In addition, we compare measured INP concentrations to INP parameterizations, and we observe good agreement with the Tobo et al. (2013) parameterization developed from measurements conducted in a ponderosa pine forest ecosystem in Colorado, USA.